Research on the Inversion Calculation Method of Overvoltage Based on the Nonlinear Model of Potential Transformer

摘要：

Monitoring overvoltage is essential to the power system’s operating well.Potential transformer is an important measuring instrument in power station.Because of the high amplitude of lightning overvoltage and switching overvoltage, the iron core of potential transformer reaches saturation in a very short time.The iron core shows nonlinear characteristic, so the distortion of secondary voltage and current happens.This article uses a nonlinear model of 10kV potential transformer to restore the primary voltage from the secondary voltage by the inversion calculation.

关键词： overvoltage potential transformer nonlinearities inversion calculation

作者: Lizhi Yan Guishu Liang Haifeng Sun Xin Liu Xixiao Liu

作者单位: Key Laboratory of Power Equipments Defense of Hebei Province,North China Electric Power UniversityP. Key Laboratory of Power Equipments Defense of Hebei Province,North China Electric Power University P

会议类型: 国际会议

会议名称: 第七届亚太防雷国际会议

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2011-11-01（万方平台首次上网日期，不代表论文的发表时间）